Möbius 函数[tex=8.286x1.286]7SOCHZvKlvZjlGgRarLiPaffznBDVlCx3mWsOShnc4lzLEkpAc7lJjGREz+XpqOO[/tex]定义如下: [tex=19.071x3.643]9Gx2wI2O/9c6ahU141SOFQu0O6rshpGKbXwbwJdRfQDtmjlH3PTv2J6bDyHA97N+pP++ExDeTiwoWyG/d3YnxdvLbjl3KoVKan71FABp97Qa3P3Zo+ZJRalM3CO3xZ/O1H65LQh1bJkI4PdvOqx5YgcQfD5CgewOYs3eXLTfdNY=[/tex]则[tex=0.643x1.286]LHHF5r8Y9VBlpolr/GDm2w==[/tex]是积性函数, 即: 若[tex=0.643x0.786]SBMIs+VUk7//BOpfqlQl0w==[/tex]和[tex=0.929x0.786]D9maNLyVVGrC3QbL9jjRWg==[/tex]是互素的正整数, 则[tex=7.929x1.357]UPajlxgWg8FSZLT+Fn2QaRWbTA2mIQx47FBsCvjEPgI=[/tex].
举一反三
- Möbius 函数[tex=8.286x1.286]7SOCHZvKlvZjlGgRarLiPaffznBDVlCx3mWsOShnc4lzLEkpAc7lJjGREz+XpqOO[/tex]定义如下: [tex=19.071x3.643]9Gx2wI2O/9c6ahU141SOFQu0O6rshpGKbXwbwJdRfQDtmjlH3PTv2J6bDyHA97N+pP++ExDeTiwoWyG/d3YnxdvLbjl3KoVKan71FABp97Qa3P3Zo+ZJRalM3CO3xZ/O1H65LQh1bJkI4PdvOqx5YgcQfD5CgewOYs3eXLTfdNY=[/tex]则对于任一正整数[tex=0.643x0.786]SBMIs+VUk7//BOpfqlQl0w==[/tex]有[tex=15.214x2.929]T/KJqTyewk/YQfTSwKttGnWyacTj1vFVE5/17yE51sEVbKaW3ZhHfcjGgOlj7ib9KVK7F0rNy3SaB93BqaGLKfjIbJzUTVetwq3H3JuvUAH6cjrn8j+8on3Ep6k5Rg5k4MCOy3/Yq+GW4fAooAP8nQ==[/tex]
- set1 = {x for x in range(10)} print(set1) 以上代码的运行结果为？ A: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} B: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10} C: {1, 2, 3, 4, 5, 6, 7, 8, 9} D: {1, 2, 3, 4, 5, 6, 7, 8, 9,10}
- 【计算题】5 ×8= 6×4= 7×7= 9×5= 2×3= 9 ×2= 8×9= 7×8= 5×5= 4×3= 5+8= 6 ×6= 3×7= 4×8= 9×3= 1 ×2= 9×9= 6×8= 8×0= 4×7=
- >>>x= [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9]>>>print(x.sort()) 语句运行结果正确的是( )。 A: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] B: [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9] C: [10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0] D: ['2', '4', '0', '6', '10', '7', '8', '3', '9', '1', '5']
- 输出九九乘法表。 1 2 3 4 5 6 7 8 9 --------------------------------------------------------------------- 1*1=1 2*1=2 2*2=4 3*1=3 3*2=6 3*3=9 4*1=4 4*2=8 4*3=12 4*4=16 5*1=5 5*2=10 5*3=15 5*4=20 5*5=25 6*1=6 6*2=12 6*3=18 6*4=24 6*5=30 6*6=36 7*1=7 7*2=14 7*3=21 7*4=28 7*5=35 7*6=42 7*7=49 8*1=8 8*2=16 8*3=24 8*4=32 8*5=40 8*6=48 8*7=56 8*8=64 9*1=9 9*2=18 9*3=27 9*4=36 9*5=45 9*6=54 9*7=63 9*8=72 9*9=81